function aAfficher(){
	if(document.getElementById("habitable").checked == true)
	{
		divAfficheHabitable();
	}
	if(document.getElementById("terrain").checked == true)
	{
		divAfficheTerre();
	}
}


function divAfficheHabitable(){
		document.getElementById("divTerrain1").style.display = "none";
		document.getElementById("divHabitable2").style.display = "block";
    }
function divAfficheTerre(){
		document.getElementById("divHabitable2").style.display = "none";
		document.getElementById("divTerrain1").style.display = "block";
}